Masaeli SE, Teimouri M, Adhikari B, Attarroshan M, Akin JW, Raju S, Stokes SL, Emerson JP. Sodium Trifluoroacetate mediated Copper-Catalyzed
aza-Michael addition of
α,β-unsaturated olefins with aromatic amines.
Tetrahedron Lett 2023;
122:154520. [PMID:
37694227 PMCID:
PMC10486139 DOI:
10.1016/j.tetlet.2023.154520]
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Abstract
We present a sodium trifluoroacetate (CF3CO2Na) mediated copper-catalyzed aza-Michael addition of aromatic amines with activated olefins under mild, aqueous reaction conditions. This simplistic protocol employs a copper catalyst (10 mol%) and water as solvent. This transformation occurs precisely with aromatic substituted amines containing both electron-donating (EDG) and electron-withdrawing (EWG) groups. A broad range of substrates were tested under the optimized conditions, which are producing good to moderate yields.
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